[8.2.0d2] Update to r8.2.0d2

- Update ROADMAP.rst and HISTORY.rst
- increase development level
- fix docstring of ComparableMixin._cmpkey()

Change-Id: I2a7e2e511d3fe6b8053db84f3b98da733f504aa4
---
M pywikibot/tools/__init__.py
M ROADMAP.rst
M pywikibot/__metadata__.py
M HISTORY.rst
4 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/HISTORY.rst b/HISTORY.rst
index b65bc8a..695fbdf 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,6 +1,15 @@
 Release history
 ===============
 
+8.1.2
+-----
+*23 April 2023*
+
+* Add support for guwwikinews (:phab:`T334461`)
+* Add support for kbdwiktionary (:phab:`T333271`)
+* Fix :func:`tools.chars.url2string` parsing for multiple encodings (:phab:`T335224`)
+
+
 8.1.1
 -----
 *21 April 2023*
diff --git a/ROADMAP.rst b/ROADMAP.rst
index 170c6d3..1adb1ab 100644
--- a/ROADMAP.rst
+++ b/ROADMAP.rst
@@ -1,9 +1,7 @@
 Current release
 ---------------
 
-* Add support for guwwikinews (:phab:`T334461`)
-* Add support for kbdwiktionary (:phab:`T333271`)
-* Fix :func:`tools.chars.url2string` parsing for multiple encodings (:phab:`T335224`)
+* *(no changes yet)*
 
 
 Deprecations
diff --git a/pywikibot/__metadata__.py b/pywikibot/__metadata__.py
index 350ffc0..e186959 100644
--- a/pywikibot/__metadata__.py
+++ b/pywikibot/__metadata__.py
@@ -11,7 +11,7 @@
 
 
 __name__ = 'pywikibot'
-__version__ = '8.2.0.dev1'
+__version__ = '8.2.0.dev2'
 __description__ = 'Python MediaWiki Bot Framework'
 __maintainer__ = 'The Pywikibot team'
 __maintainer_email__ = 'pywikibot@lists.wikimedia.org'
diff --git a/pywikibot/tools/__init__.py b/pywikibot/tools/__init__.py
index 717a6bd..25f2395 100644
--- a/pywikibot/tools/__init__.py
+++ b/pywikibot/tools/__init__.py
@@ -240,7 +240,7 @@
 
         This ensures that ``_cmpkey`` method is defined in subclass.
 
-        .. versionadded:: 8.2
+        .. versionadded:: 8.1.2
         """
 
     def __lt__(self, other):

